Advanced spectroscopic analysis of coal surfaces during beneficiation

Technical Report · Sun Jan 01 00:00:00 EST 1989

DOI:https://doi.org/10.2172/6960161· OSTI ID:6960161

McClelland, J F; Oh, J S

Development work advanced on two new FTIR spectroscopic approaches for measuring coal surface oxidation and on-line infrared spectra of coal. The former FTIR/UV approach used UV induced oxidation to gauge the level of carbonyl forming species present in coal. The latter approach is called Transient Infrared Emission Spectroscopy (TIRES) and uses pulsed surface heating of coal to obtain an emission spectrum which is not distorted by excessive self absorption. In FTIR/UV work oven-oxidized coals were analyzed after 1, 3, and 6 days of exposure to oxygen at 100{degree}C. Spectra of the oven and U induced carbonyl formation overlapped but had somewhat different band shapes indicative of some differences in the two oxidation processes. A TIRES apparatus was constructed using an argon ion laser, rotating sample stage, and FTIR spectrometer. A spectrum was measured of Illinois {number sign}6 coal moving at a velocity of 60 ft/min. which compared favorably with photoacoustic spectrum of the same coal. 4 figs.

• Research Organization: Ames Lab., Ames, IA (United States)
• Sponsoring Organization: DOE/FE
• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6960161
• Report Number(s): IS-4980; ON: DE90011721
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COAL
OXIDATION
CARBONYLS
EMISSION SPECTROSCOPY
FOURIER TRANSFORMATION
INFRARED SPECTRA
PHOTOACOUSTIC SPECTROSCOPY
PROGRESS REPORT
SPECIFICITY
SPECTROSCOPY
SURFACES
ULTRAVIOLET RADIATION
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
ENERGY SOURCES
FOSSIL FUELS
FUELS
INTEGRAL TRANSFORMATIONS
MATERIALS
RADIATIONS
SPECTRA
TRANSFORMATIONS
010600* - Coal
Lignite
& Peat- Properties & Composition
400102 - Chemical & Spectral Procedures